Respuesta :

Jieep
x−7<1

Add 7 to both sides.

x−7+7<1+7

x<8

To plot this on a number line, put a circle around 8 and a line going to the left with an arrow at the end.
Photon
[tex]x - 7 \ \textless \ 1[/tex]
[tex]x \ \textless \ 7+1[/tex]
[tex]x \ \textless \ 8[/tex]

Hope this helps !

Photon